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Table 2 Internal consistency of COVID-19 IPC Measures Survey Domains as indicated by Cronbach’s alpha (n = 627 actively working respondents)

From: Development and validation of a multi-lingual online questionnaire for surveying the COVID-19 prevention and control measures used in global workplaces

COVID-19 IPC Measures Domaina

Itemsb

α if item removedc

Areas for Improvement α = 0.73 c

Contact tracing

0.69

Education and training

0.69

Access to protective materials

0.69

Testing

0.70

Implementation of basic preventive measures by management

0.70

Adherence to basic preventive measures by employees

0.70

Funding for safety measures

0.72

Environmental conditions

0.72

Access to vaccines

0.73

Environmental Adjustments α = 0.66 c

Temperature adjustments

0.56

Ventilation adjustments

0.65

Environmental monitoring

0.61

Air quality monitoring

0.56

Testing and Surveillance α = 0.62 c

Testing of symptomatic employees

0.48

Testing of close contacts

0.51

Employee temperature checks

0.62

Symptom reporting to management

0.57

Employee Education and Training α = 0.68 c

Training on proper PPE use

0.66

Training on how to safely interact with colleagues in work

0.49

Training on how to safely socialize outside of work

0.61

Costs Incurred α = 0.60 c

Free COVID-19 testing

0.54

Paid time off for testing

0.54

Paid sick leave

0.54

Number of Contacts α = 0.60 c

Worker movement restricted between facilities

0.45

Worker bubbles

0.51

Only essential personnel enter facility

0.57

High-risk employees (>  60 yrs., underlying health conditions) stay at home

0.58

Physical Distancing α = 0.97 c

Physical distancing rules in place

0.95

Physical distancing is maintained

0.92

Isolation Strategies α = 0.73 c

Confirmed COVID-19 cases self-isolate

0.56

Symptomatic employees self-isolate

0.54

Close contacts self-isolate

0.78

Masking α = 0.90 c

All employees are instructed to wear masks

0.83

Masks are worn correctly in the workplace

0.81

  1. aDomains identified through exploratory factor analysis
  2. b Items coded as: Yes (2), Unsure (1), No (0)
  3. c Standardized alpha’s reported